Just isolate f.. buy getting it alone on one side or the other
Answer:
13.41
Step-by-step explanation:
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283.90 divided by 17 to get the hourly rate. Which is 16.7. Then you multiply by 20 hours and get 334
Answer $334
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➷ Work out the time for Cardiff to Swansea:
time = distance/speed
Substitute in the values:
time = 69/60
Solve:
time = 1.15 hours = 69 minutes
Add together the total time and distance:
72 + 69 = 141
48 + 69 = 117
speed = distance/time
speed = 141/1.95
speed = 72.3 km/h
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<span>k^2+11k has 11 as the coefficient of the first power of the variable (k).
To complete the square:
Take HALF of this coefficient. In other words, take HALF of 11, obtaining 11/2.
Square this (11/2): (121/4)
Add this 121/4 to </span><span>k^2+11k
Result: </span><span>k^2+11k + 121/4
This is a perfect square: </span>k^2+11k + 121/4 = (k + 11/2)^2
Answer: The number to be added to k^2 + 11k to make it a perfect square is (121/4).
